[riverrunner]

And in another 3 or 4 decades we might even may see a commercial use maybe.

[citizen]

I hope it doesn’t take another 3 or 4 decades. I won’t live that long.

How about 3 or 4 years, as it seems a lot of progress is being made lately by a host of researchers and organizations.

[Wonder Warthog]

"And in another 3 or 4 decades we might even may see a commercial use maybe."

You're talking about hot fusion, right??